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Unformatted text preview: k o = = ° ° = ( )( . ) ( . ) . 1400 0 0275 0 6 64 2 W / m . C m W / m. C 2 Water 97 ° C Egg T i = 8 ° C The constants λ 1 and A 1 corresponding to this Biot number are, from Table 41, 9969 . 1 and 0877 . 3 1 1 = = A Then the Fourier number becomes 2 . 198 . ) 9969 . 1 ( 97 8 97 70 2 2 1 ) 0877 . 3 ( 1 , ≈ = ⎯→ ⎯ = − − ⎯→ ⎯ = − − = − − ∞ ∞ τ θ τλ e e A T T T T i sph Therefore, the oneterm approximate solution (or the transient temperature charts) is applicable. Then the time required for the temperature of the center of the egg to reach 70 ° C is determined to be min 17.8 = = × = α τ = − s 1068 /s) m 10 14 . ( m) 0275 . )( 198 . ( 2 6 2 2 o r t 418...
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This note was uploaded on 01/19/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.
 Fall '10
 Dr.DanielArenas
 Thermodynamics, Mass, Heat

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